It felt like a cold war flashback: Britain was riveted by not one but two spy flaps last week, while Russian agents were arrested in Qatar and charged with involvement in an alleged political assassination. First, Prime Minister Tony Blair's government caught flack when prosecutors dropped charges against a former intelligence analyst who had exposed U.S. and British plans to spy on U.N. Security Council members opposed to the Iraq war. Then former Cabinet Minister Clare Short, who resigned in protest after the fall of Baghdad and has been a thorn in Blair's side ever since, declared on a bbc radio...